package com.example.nbshopping;
import androidx.appcompat.app.AlertDialog;
import androidx.appcompat.app.AppCompatActivity;
import androidx.drawerlayout.widget.DrawerLayout;
import androidx.fragment.app.Fragment;
import androidx.fragment.app.FragmentManager;
import androidx.fragment.app.FragmentTransaction;

import android.content.DialogInterface;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.RadioGroup;
import android.widget.TextView;
import android.widget.Toast;

import com.example.nbshopping.com.example.nbshopping.login_reg.LoginRegActivity;
import com.example.nbshopping.com.example.nbshopping.login_reg.PersonCenterActivity;
import com.example.nbshopping.com.example.nbshopping.login_reg.UserBean;
import com.example.nbshopping.utils.SaveUserUtils;

import java.util.ArrayList;
import java.util.List;

//一个activity就表示一个页面，对应布局用setContentView()
//1.声明控件的成员变量
//2.查找控件对应xml的id,initView();
//3.设置用户互动监听setListener();
public class MainActivity extends AppCompatActivity {
    RadioGroup rg;
    Button fpagebtn,typebtn,mebtn,loginbtn,regbtn,cancelbtn;
    TextView logintv;
    DrawerLayout drawerLayout;
    //将当前activity包含的fragment放到一个集合里，便于管理
    List<Fragment>fragmentList;
    private FragmentManager fm;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        initView();
        setListener();
        initFragment();
    }
//获取焦点的执行方法
    @Override
    protected void onResume() {
        super.onResume();
        setWelcomeText();//设置改变彩色部分内容
    }

    private void setWelcomeText() {//侧滑顶部的欢迎语
        UserBean.DataBean userInfo = SaveUserUtils.getUserInfo(this);
        if (userInfo == null) {
            logintv.setText("未登录，请先登录！");
        }else{
            String nickname = userInfo.getNickname();
            String msg = nickname+"用户，\n欢迎您！";
            logintv.setText(msg);
        }
    }

    //初始化activityfragment管理集合
    private void initFragment() {
        fragmentList = new ArrayList<>();
        fragmentList.add(new FPageFragment());
        fragmentList.add(new TypeFragment());
        fragmentList.add(new MeFragment());
        //将碎片添加到activity
        //1.获取碎片管理者对象
        fm = getSupportFragmentManager();
        //2.获取碎片事物对象
        FragmentTransaction transaction= fm.beginTransaction();
        for (int i = 0; i <fragmentList.size() ; i++) {
            transaction.add(R.id.main_layout,fragmentList.get(i));
            transaction.hide(fragmentList.get(i));
        }
        transaction.show(fragmentList.get(0));
        transaction.commit();
    }
//切换fragment
    private void changeFragment(int pos){
        FragmentTransaction transaction = fm.beginTransaction();
        for (int i = 0; i <fragmentList.size() ; i++) {
            transaction.hide(fragmentList.get(i));
        }
        transaction.show(fragmentList.get(pos));
        transaction.commit();
    }
    private void setListener() {
        fpagebtn.setOnClickListener(onClickListener);
        typebtn.setOnClickListener(onClickListener);
        mebtn.setOnClickListener(onClickListener);
        loginbtn.setOnClickListener(onClickListener);
        regbtn.setOnClickListener(onClickListener);
        cancelbtn.setOnClickListener(onClickListener);
        rg.setOnCheckedChangeListener(listener);
    }
    //创建监听对象
    View.OnClickListener onClickListener = new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            int id = v.getId();//获取到被点击的id
            switch (id) {
                case R.id.drawer_btn_fpage:
                    rg.check(R.id.main_rb1);
                    break;
                case R.id.drawer_btn_type:
                    rg.check(R.id.main_rb2);
                    break;
                case R.id.drawer_btn_me:
                    rg.check(R.id.main_rb3);
                    break;
                case R.id.drawer_btn_login:
                    //跳转页面
                    /*判断是否登录了，如果登录就跳转到个人中心页面，如果没有登录，就跳转到登录页面*/
                    boolean login = islogin();
                    Intent it1 = new Intent(MainActivity.this, LoginRegActivity.class);
                    if (!login) {
                        //跳转页面
                        it1.putExtra("flag",1);
                        startActivity(it1);
                    }
                    it1.putExtra("flag",0);
                    startActivity(it1);
                    break;
                case R.id.drawer_btn_reg:
                    it1 = new Intent(MainActivity.this,LoginRegActivity.class);
                    it1.putExtra("flag",1);
                    startActivity(it1);
                    break;
                case R.id.drawer_btn_cancel:
                    exitlogin();
                    break;
            }
            drawerLayout.closeDrawers();//关闭抽屉
        }

    };
//退出登录 注销
    private void exitlogin() {
        UserBean.DataBean userInfo = SaveUserUtils.getUserInfo(this);
        if (userInfo == null) {
            Toast.makeText(this, "您还未登录账号！", Toast.LENGTH_SHORT).show();
        }else{
            AlertDialog.Builder builder = new AlertDialog.Builder(this);
            builder.setTitle("提示信息").setMessage("您是否确定退出登录？")
                    .setPositiveButton("取消",null)
                    .setNegativeButton("确定", new DialogInterface.OnClickListener() {
                        @Override
                        public void onClick(DialogInterface dialog, int which) {
                            //删除文件当中的内容
                            SaveUserUtils.deleteUserInfo(MainActivity.this);
                            Toast.makeText(MainActivity.this,"已注销！",Toast.LENGTH_SHORT).show();
                        }
                    });
            builder.create().show();
        }
    }

    //判断是否登录，如果登录就跳转到个人中心页面
    private boolean islogin() {
        UserBean.DataBean userInfo = SaveUserUtils.getUserInfo(this);
        if (userInfo==null) {
            return false;//没登录，没文件
        }
        //userInfo不为空直接跳到个人中心
        Intent intent = new Intent(this, PersonCenterActivity.class);
        startActivity(intent);//跳转到个人中心
        return true;


    }

    RadioGroup.OnCheckedChangeListener listener = new RadioGroup.OnCheckedChangeListener() {
        @Override
        public void onCheckedChanged(RadioGroup group, int checkedId) {
            switch (checkedId){
                case R.id.main_rb1:
                    changeFragment(0);
                    break;
                case R.id.main_rb2:
                    changeFragment(1);
                    break;
                case R.id.main_rb3:
                    changeFragment(2);
                    break;
            }
        }
    };
//查找控件
    private void initView() {
        rg = findViewById(R.id.main_rg);
        fpagebtn = findViewById(R.id.drawer_btn_fpage);
        typebtn = findViewById(R.id.drawer_btn_type);
        mebtn = findViewById(R.id.drawer_btn_me);
        loginbtn = findViewById(R.id.drawer_btn_login);
        regbtn = findViewById(R.id.drawer_btn_reg);
        cancelbtn = findViewById(R.id.drawer_btn_cancel);
        logintv = findViewById(R.id.drawer_tv_name);
        drawerLayout = findViewById(R.id.main_drawer);
    }
}
